Recently, a foreign netizen with the ID of reggie_gakil had an accident when using RTX 4090 to play “Red Dead Redemption 2”: the power interface of the graphics card caught fire and directly burned the power supply connector. The graphics card used by this netizen is a Gigabyte GeForce RTX 4090 Gaming OC, and the graphics card has only been available for more than a week.
As can be seen from the above picture, the 12-pin hole below the power interface of the graphics card is seriously damaged, and the 4-pin above is relatively good. The player said that his adapter cable has a quality problem and is seeking a replacement from the manufacturer.
Judging from the damage to the power interface of the graphics card, the main problem of this fire seems to be the 12 pins below. However, it can be found through the power supply cable that the user is using an adapter cable with the NVIDIA logo, but it is still severely burned.
First of all, it is certain that the cause of the fire has nothing to do with whose graphics card, if it is the quality of the graphics card itself, it should be the core part of the fire burning, and the current problem lies in the auxiliary power supply.
Because the power consumption of the RTX 4090 itself has increased this time, it has also begun to use 16pin adapter cables on a large scale. The instantaneous power consumption of some AIC flagship products can reach about 800W, which will inevitably increase the requirements for switching cables.
We have summarized a size chart. Most of the RTX 4090 graphics cards of this generation of AICs are more than 150mm wide. Although the netizens feel that they should be using Magic Eagle graphics cards, the width is still 150.2mm. The space requirement is relatively high, so the bending angle of most netizens using the adapter cable is very large.
Let’s do a simple demonstration. One end of the 16pin interface is connected to the graphics card, and the bent part in the middle will reach the side panel of the chassis during the actual installation process. Is there any risk with such a large bending angle?
Generally speaking, there is no problem with the angle of other wires in the chassis, otherwise the students who can’t walk the top line will be scared to death. But the RTX 4090 with an instantaneous power consumption of 800W is recommended to give it as much space as possible.
In addition, the specification of the new 12VHPWR line is that it can be bent at a distance of more than 35mm from the plug. Breaking directly from the plug position may burn the plug.
However, the foreign player said that the adapter cable has quality problems, and we do not know the specific situation, but it is still recommended that players leave enough bending radius for the 8pin*4 adapter cable when using it.
